CVE-2026-28548
Published: 05 March 2026
Summary
CVE-2026-28548 is a high-severity Improper Privilege Management (CWE-269) vulnerability in Huawei Emui. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 0.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and AC-6 (Least Privilege).
Deeper analysis
CVE-2026-28548 is a vulnerability involving improper verification in the email application, as identified in Huawei's consumer support bulletin. Published on 2026-03-05, it carries a CVSS v3.1 base score of 7.1 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N) and is associated with CWE-269 (Improper Privilege Management). Successful exploitation may affect service confidentiality.
The vulnerability can be exploited by a local attacker with no privileges required, though it demands low attack complexity and user interaction. Attackers can achieve high impacts on confidentiality and integrity, potentially allowing unauthorized access to sensitive email data or modification of email-related services without affecting availability.
Huawei has published a security bulletin detailing the issue at https://consumer.huawei.com/en/support/bulletin/2026/3/, which serves as the primary advisory for mitigation guidance and potential patches.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-9813
Vulnerability details
Vulnerability of improper verification in the email application. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Improper privilege management (CWE-269) in local email app directly enables T1068 for escalation to access resources; high confidentiality impact on email data facilitates T1114.001 local collection. UI:R and AV:L align with client-side exploitation.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly enforces access and authorization checks in the email application to block exploitation of improper verification.
Limits privileges assigned to email app processes and users, mitigating the CWE-269 improper privilege management flaw.
Ensures access control decisions are correctly evaluated before granting email service operations, addressing the verification gap.